About digital control of fermentation process

1. COMPUTER CONTROL OF
FERMENTATION PROCESS
SUBMITTED BY:
K. Sanjay(BP211525),
II M. Sc. Applied Microbiology,
Sacred Heart College(Autonomous),
Tirupattur.
SUBMITTED TO:
Dr. P. Saran raj,
Head of Department of Microbiology,
Sacred Heart College(Autonomous),
Tirupattur.

2. The initial use of computers in the 1960s for modelling
fermentation process control for production of glutamic
acid and penicillin production.
They are first discovered by Yamashita and Murao
Three distinct areas of computer function were
recognized by Nyiri
INTRODUCTION:

3. The main function of a fermenter is to provide a
controlled environment for the growth of
microorganisms to obtain a desired product.
It is used to large scale production in the industries.
FERMENTOR:

4. Fermenter are used in the large scale production in the most industries.
 Dairy production [milk,cheese,beer]
 Antibiotic production [penicillin,streptomycin]
 Enzyme production [amylase,protease]
 Organic Acid production [citric acid.glutamic acid]
 Vitamins production [vitamin B and A]

5.  Construction material.
 Temperature control.
 Aeration and agitation.
FERMENTOR IMPORTAT PARTS

6. They are three distinct areas of computer function;
logging of process data.
Data analysis.
process data.
COMPUTER FUNCTION:

7. Data logging is performed by the data acguisition system
which has both hardware and software components.
 There is an interface between the sensors and the computer.
The software should include the computer program for
sequential scanning of the sensor signals and the procedure of
data storage.
LOGGING OF PROCESS DATA:

8.  Data reduction is performed by the data analysis system ,which
is a computer program based on a series of selected mathematical
equation.
 The analysed information may then be put on a print out, fed
into a data bank or utilized for process control.
DATA ANALYSIS: [Reduction of logging data]

9.  Process control is also performed a computer program
 Signals from the computer are fed to pumps ,valves or
switches via the interface.
They are two type of control:
1.DDC-Direct Digital Control.
2.SSC-Supervisory Set-point Control.
PROCESS CONTROL:

10.  DDC; It is when the fermenter is under the direct
control of the computer software.
 SSC; the use of independent controller to
manage all control function of a fermenter and the
computer communicates with the controller only to
exchange information.

11. • It is used to fermenter in the fermentation
techniques.
SENSOR:

12. Inductive sensors Inductors and inductance can
strike fear into the hearts of normally sane engineers,
but inductance is the basis for many sensing
applications.
Inductive sensors are used heavily in machine
applications to sense the proximity of a metal object.

13.  Temperature control.
 Ph control
 Dissolved the oxygen.
 Mineral/nutrient level
Application: